/*
 * Copyright [2013-2021], Alibaba Group Holding Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.polardbx.sequence;

import com.alibaba.polardbx.sequence.exception.SequenceException;
import com.alibaba.polardbx.common.model.lifecycle.Lifecycle;

/**
 * 序列DAO接口
 *
 * @author nianbing
 */
public interface SequenceDao extends Lifecycle {

    /**
     * 取得下一个可用的序列区间
     *
     * @param name 序列名称
     * @return 返回下一个可用的序列区间
     */
    SequenceRange nextRange(String name) throws SequenceException;

    /**
     * 获取当前的步长
     */
    int getStep();

    /**
     * 重试次数，init和nextRange都会基于这个值进行重试
     */
    int getRetryTimes();

}
